Lecture X

I have shown on a number of occasions that superficial ideas about the way in which the human physical and ether bodies relate to the process of going to sleep are wrong. It is usually said that human beings grow tired because they use their limbs, because they work, and they need to sleep to make up for this. Merely to remember that we do not always go to sleep because we are tired will put us on the right track. Think of the well-rested retired gentleman who may go to a lecture, for instance, because it is the done thing; he’ll usually be fast asleep after the first five minutes, which is hardly due to his being tired.